Ram-raiders have made off with what police describe as a large quantity of power tools following a smash and grab break-in on a Swansea hire company.The burglars struck at HSS Hire on Samlet Road in Llansamlet, using a vehicle to ram the shop's roller shutters to gain access to the main warehouse.Officers say they then made-off with a large quantity of high-value power tools including portable cut off saws and heavy-duty combi hammer drills.The raid happened around 6.40pm yesterday, and police are urging anyone with information about the burglary — or anyone who is offered power tools for sale — to come forward.A South Wales Police spokesman said: "Police in Swansea are appealing for information following a commercial burglary at a premises on the Swansea Enterprise Zone when a large quantity of power tools were stolen."Officers believe that the thieves gained entry to the main warehouse by using a vehicle to force open a small entrance in the roller shutter doors."Anyone with information should contact Neath CID."